CN108538663B - Novel dual-power transfer switch mechanism - Google Patents
Novel dual-power transfer switch mechanism Download PDFInfo
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- CN108538663B CN108538663B CN201810140312.0A CN201810140312A CN108538663B CN 108538663 B CN108538663 B CN 108538663B CN 201810140312 A CN201810140312 A CN 201810140312A CN 108538663 B CN108538663 B CN 108538663B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 188
- 230000005284 excitation Effects 0.000 claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000003068 static effect Effects 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a novel dual-power transfer switch mechanism which comprises a mounting base, a switching-on excitation driving mechanism, a switching-off spring, a left supporting plate component, a right supporting plate component, a common power supply working mechanism, a standby power supply working mechanism, an excitation switching-off mechanism, a manual switching-off mechanism, a mechanical interlocking mechanism of the common power supply working mechanism and the standby power supply working mechanism, a switching-on supporting mechanism of the common power supply working mechanism and the standby power supply working mechanism and a static contact component. The invention discards the traditional opening and closing structure and layout mode, adopts a brand new layout and structure, the electromagnet mechanism and the opening spring are distributed at two sides of the power supply rotating shaft, when opening the valve, the electromagnet movable iron core is not moved, the opening spring only needs to drive the power supply working mechanism to rotate, the kinetic energy is greatly saved, the use efficiency of the spring energy storage is improved, and the opening speed is further improved.
Description
Technical Field
The invention relates to the technical field of switching mechanisms, in particular to a novel dual-power transfer switching mechanism.
Background
Most of the prior dual-power transfer switches in the market have old products, either have complex structures and high manufacturing cost, or have electric performance which cannot meet the social requirements of the new era, and particularly after the execution of new standards, most of the dual-power transfer switches have serious defects in the aspect of electric performance. The novel dual-power transfer switch is designed aiming at a new standard, has the advantages of simple structure, safety, reliability, convenience in processing, low manufacturing cost and high brake separating speed, greatly improves the comprehensive electrical performance of the product, and can well meet the social demands.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a novel dual-power transfer switch mechanism, which solves the problems of complex structure, unsafe structure, inconvenient processing, low manufacturing cost and low opening speed of a dual-power transfer switch.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a novel dual power supply change-over switch mechanism, includes switch-on excitation mechanism, left backup pad subassembly, right backup pad subassembly, common power supply operating mechanism, stand-by power supply operating mechanism, static contact subassembly are installed on the base, common power supply operating mechanism separating brake spring and common power supply operating mechanism switch-on excitation mechanism separate land common power supply operating mechanism square shaft both sides, common power supply operating mechanism separating brake spring one end is fixed on the mounting base, the other end of common power supply operating mechanism separating brake spring is connected with drive crank arm, common power supply operating mechanism switch-on excitation mechanism one end is installed on the base, the other end of common power supply operating mechanism switch-on excitation mechanism is connected with drive crank arm, after switching on common power supply operating mechanism switch-on excitation mechanism circular telegram, switch-on excitation mechanism's moving, static iron core actuation, moving iron core connecting rod drive connector and axle along connecting rod direction motion, when the switching-off excitation mechanism of the common power supply is electrified or manually pressed down, the push rod at the lower end of the switching-off excitation mechanism of the common power supply pushes the rotary arm to rotate around the shaft, the rotary arm extrudes the extension rod fixed on the switching-on support block, thereby driving the switching-on support block to rotate around the shaft, the switching-on support block slides off from the support surface of the baffle, the switching-off spring releases energy, and the driving crank arm drives the common power supply to complete quick switching-off, the mechanical interlock rod is arranged between the baffle of the common power supply working mechanism and the baffle of the standby power supply working mechanism, can slide left and right on the shaft, is designed in position and size accurately, ensures that the common power supply working mechanism and the standby power supply working mechanism cannot be in a closing state at the same time, and the movable contact modules of the common power supply working mechanism and the standby power supply working mechanism are provided with insulating blocks so as to ensure the insulation of the movable contact and the supporting mechanism, and the movable contact assembly is arranged on the insulating blocks.
Preferably, the opening spring and the closing excitation mechanism are arranged on two sides of a square shaft of the common power supply working mechanism respectively, the opening spring and the closing excitation mechanism are arranged on two sides of the square shaft of the common power supply working mechanism respectively, one end of the opening spring is arranged on the base, the other end of the opening spring is connected with the driving crank arm, one end of the closing excitation mechanism is arranged on the base, and the other end of the closing excitation mechanism of the common power supply working mechanism is connected with the other end of the driving crank arm.
Preferably, a reset pressure spring is sleeved on the movable iron core connecting rod, a connecting head arranged at the upper end of the movable iron core connecting rod is provided with a long hole, when the closing excitation mechanism is electrified, the movable iron core and the static iron core are attracted, the reset pressure spring is compressed for energy storage, and when the closing excitation mechanism stops being electrified, the reset spring releases energy and drives the movable iron core, the connecting rod and the connecting head to return to the topmost position.
Preferably, the common power supply working mechanism is installed on the left support frame and the right support frame through a bushing and a shaft, and can rotate around an axis O-O, O '-O', wherein the driving crank arm is fastened on the square shaft of the common power supply working mechanism through a pin, the baffle is fastened on the square shaft of the common power supply working mechanism through a pin, the standby power supply working mechanism is identical to the common power supply working mechanism in installation mode, the structural layout is symmetrical to the common power supply working mechanism, and the driving crank arm can rotate around an axis P-P, P '-P'.
Preferably, the square shaft and the connecting plate are fixedly connected to form a rigid framework, the connecting rod is connected with the connecting plate through a shaft and can rotate around the shaft, the moving contact module is connected with the connecting rod through a shaft and can rotate around the shaft, and the standby power supply working mechanism (standby power supply working mechanism) is symmetrical in structure with the common power supply working mechanism (common power supply working mechanism) and has the same working principle.
Preferably, the side plates are fixedly connected with the cross beam to form a rigid framework, the insulating block is arranged on the cross beam, and the movable contact assembly is arranged on the insulating block in a mode shown in a fifth drawing.
Preferably, the movable contact assembly consists of a movable arc contact, a pin, a shaft, a bracket, a bolt, a pressure spring and a movable contact, wherein the movable arc contact and the movable contact are sleeved on the shaft and can rotate around the shaft, the pressure spring is sleeved on the pin, and the bolt passes through a through hole on the bracket.
Preferably, the excitation brake separating mechanism or the manual brake separating mechanism of the common power supply working mechanism is arranged on the left support plate assembly through a shaft and a support frame, an extension rod is arranged on the brake separating support block and can rotate around the shaft, a torsion spring is sleeved on the shaft, one end of the torsion spring is supported on the shaft, the other end of the torsion spring presses the brake separating support block to enable the brake separating support block to cling to a limiting shaft, a rotating arm is arranged on the support frame through the shaft and can rotate around the shaft, the torsion spring is sleeved on the shaft, one end of the torsion spring is sleeved on the shaft, the other end of the rotating arm is supported on the shaft, the brake separating excitation mechanism is arranged on the left support plate assembly, when the brake separating excitation mechanism drives the common power supply working mechanism to be switched on, the baffle plate is locked by the brake separating support block, the common power supply working mechanism is kept in a switched-on state, when the brake separating excitation mechanism is electrified or the brake separating excitation mechanism push rod is manually pressed down, the brake separating excitation mechanism push rod pushes the extension rod on the brake separating mechanism to rotate around the shaft, the brake separating support block rotates around the shaft, the brake separating support block is enabled to slide from the baffle support surface, the brake separating spring releases energy and drives the common power supply working mechanism to complete quick brake separating, and the brake separating mechanism is completely symmetrical to the brake separating mechanism or the common power supply working mechanism.
Preferably, the mechanical interlock rod is arranged between the baffle of the common power supply working mechanism and the baffle of the standby power supply working mechanism, the mechanical interlock rod is arranged on the left support plate assembly through a shaft and can slide left and right, the torsion spring enables the mechanical interlock rod to be in a middle position at ordinary times, when one side of the power supply working mechanism is switched on, the mechanical interlock rod is pushed to the other side to block the other side of the power supply working mechanism from being switched on, and therefore the common power supply working mechanism and the standby power supply working mechanism are guaranteed not to be in a switching-on state at the same time.
The invention provides a novel dual-power transfer switch mechanism. The beneficial effects are as follows:
(1) The invention discards the traditional opening and closing structure and layout mode, adopts a brand new layout and structure, the electromagnet mechanism and the opening spring are distributed at two sides of the power supply rotating shaft, when opening the valve, the electromagnet movable iron core is not moved, the opening spring only needs to drive the power supply working mechanism to rotate, the kinetic energy is greatly saved, and the use efficiency of the spring energy storage is improved, thereby improving the opening speed.
(2) The working mechanism adopts a brand new structure, reduces the weight and the rotation inertia of the working mechanism, and has higher brake separating speed.
(3) The electric brake opening and the manual brake opening are easier and more convenient.
(4) The mechanical interlocking mechanism of the invention adopts a simpler and more reliable structure.
Drawings
FIG. 1 is a schematic diagram of the overall structural layout and operating principle;
FIG. 2 is a schematic diagram of a switching-on excitation mechanism;
FIG. 3 is a schematic diagram of the installation and operation principle of a common power supply operating mechanism and a standby power supply operating mechanism;
FIG. 4 is a schematic diagram of a conventional power supply;
FIG. 5 is a schematic diagram of a moving contact module structure;
FIG. 6 is a schematic diagram of a moving contact assembly;
FIG. 7 is a schematic view of an excitation brake release, manual brake release and brake release support structure;
Fig. 8 is a schematic view of a mechanical interlock.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the present invention provides a technical solution: the common power supply working mechanism and the standby power supply working mechanism are symmetrically distributed, the common power supply working mechanism is called an A mechanism for short, the standby power supply working mechanism is called a B mechanism for short, a switching-on exciting mechanism 1 is respectively installed on two sides of a square shaft 33 of the common power supply working mechanism, a left support plate assembly 8, a right support plate assembly 9, a static contact assembly 11 and a base 10 are installed, one end of the switching-on spring 1 is fixed on the base 10, the other end of the switching-on spring 1 of the common power supply working mechanism is connected with a driving crank arm 7, one end of the exciting mechanism 2 is installed on the base 10, the other end of the switching-on exciting mechanism 2 of the common power supply working mechanism is connected with the driving crank arm 7, a shaft 5 penetrates through a strip hole in the connector 6 and a connecting hole in the driving crank arm 7, the action implementation process of the common power supply working mechanism is described by way of example, after the switching-on exciting mechanism 2 of the common power supply working mechanism is electrified, a movable iron core connecting rod 4 drives a connector 6 and a shaft 5 to move along the direction of the connecting rod 4, the shaft 5 drives the common power supply working mechanism to rotate around an O-O shaft through the driving crank arm 7, and the common power supply working mechanism is driven to rotate around the O shaft, and the common power supply working mechanism is driven to rotate around the same principle as the common power supply working mechanism and the switching-off mechanism is driven by the common power supply working mechanism, and the common power supply working mechanism is deformed to implement the common power supply working mechanism.
As shown in fig. 2, according to the second illustration, a reset pressure spring 3 is sleeved on a movable iron core connecting rod 4 of the switching-on exciting mechanism, a connecting head 6 installed at the upper end of the connecting rod 4 is provided with a long hole, when the switching-on exciting mechanism is electrified, the movable iron core and the static iron core are attracted, the reset pressure spring 3 is compressed for energy storage, and when the switching-on exciting mechanism is not electrified, the reset spring 3 releases energy and drives the movable iron core, the connecting rod 4 and the connecting head 6 to return to the topmost position.
As shown in fig. 3, the three common power supply working mechanisms and the three standby power supply working mechanisms are three-c installation diagrams of the same mechanism under different view angles, the three common power supply working mechanisms mainly show the installation logic relationship of the power supply working mechanisms on the left support frame and the right support frame, the three standby power supply working mechanisms are complemented to the three common power supply working mechanisms, mainly show the installation schematic of the power supply working mechanisms and the left support assembly upper shaft four 23 and the shaft ten 24, the three c installation effect of the power supply working mechanisms and the left support assembly and the right support assembly is shown, the common power supply working mechanisms are installed on the left support frame 8 and the right support frame 9 through the bushing one 17, the common power supply working mechanisms can rotate around the axis O-O, O '-O', and the standby power supply working mechanisms are installed on the left support frame 8 and the right support frame 9 through the bushing one 21, the standby power supply working mechanisms are installed on the left support frame 8 and the right support frame 9 through the bushing two 22, the shaft eleven 19 and the shaft ten 24, and the common power supply working mechanisms can rotate around the axis P-P, P '-P'.
As shown in fig. 4, the four common power supply operating mechanisms and the four standby power supply operating mechanisms are structural schematic diagrams under different view angles of the same mechanism, the first connecting plate 28 and the second connecting plate 32 are fixedly connected with the square shaft 33 to form a rigid framework, the first connecting rod 26 is connected with the first connecting plate 28 through the first shaft 27 and can rotate around the first shaft 27, the second connecting rod 30 is connected with the second connecting plate 32 through the second shaft 31 and can rotate around the second shaft 31, and the movable contact module 34 is connected with the first connecting rod 26 and the second connecting rod 30 through the fifth shaft 25 and the sixth shaft 29 and can rotate around the fifth shaft 25 and the sixth shaft 29.
As shown in fig. 5, the moving contact module is formed by fixedly connecting a first side plate 35, a second side plate 38 and a cross beam 36 to form a rigid structure, an insulating block 37 is mounted on the cross beam 36, and a moving contact assembly 39 is mounted on the insulating block 37 in a manner shown in fig. five.
As shown in fig. 6, the moving contact assembly is composed of a moving arc contact 40, a first pin 41, a second pin 48, a seventh shaft 42, a bracket 43, a first bolt 44, a second bolt 45, a first compression spring 46, a second compression spring 47 and a moving contact 49, wherein the seventh shaft 42 passes through connecting holes on the moving arc contact 40, the moving contact 49 and the bracket 43, the moving arc contact 40 and the moving contact 49 can rotate around the seventh shaft 42, the first compression spring 46 is sleeved on the first pin 41, the second compression spring 47 is sleeved on the second pin 48, and the first bolt 44 and the second bolt 45 pass through holes on the bracket 43.
As shown in fig. 7, the seventh common power supply working mechanism and the seventh standby power supply working mechanism are two views under different visual angles of the same mechanism, and mainly show the structure and installation relation of an excitation switching mechanism or a manual switching mechanism, a switching-on supporting block 62 is installed on a left supporting plate assembly 8 through a shaft twelve 61 and a supporting frame 57, an extending rod 63 is installed on the switching-on supporting block 62 and can rotate around the shaft twelve 61, a torsion spring 60 is sleeved on the shaft thirteenth 59, one end of the torsion spring 60 is supported on the shaft fourteen 58, the other end of the torsion spring compresses the switching-on supporting block 62 to be tightly attached to the limiting shaft fourteen 58, a rotating arm 56 is installed on the supporting frame 57 through the shaft fifteen 54 and can rotate around the shaft fifteen 54, a torsion spring 55 is sleeved on the shaft fifteen 54, one end of the torsion spring 55 is sleeved on the shaft 53, the other end of the switching-off exciting mechanism 51 is installed on the left supporting plate assembly 8, when the switching-on exciting mechanism one 2 drives the common power supply working mechanism to switch on, the switching-on supporting block 62 locks the baffle 15 to keep the common power supply working mechanism in a switching-on state, and when the switching-off exciting mechanism 51 is electrified or the exciting mechanism push rod 52 is manually pressed down, the switching-off exciting mechanism drives the switching-off supporting block 56 to rotate around the shaft 62 through the shaft 62, the rotating arm 62 to rotate around the shaft 62 through the push rod 50 to drive the shaft 62, and the switching-off supporting block 62 to rotate around the common power supply supporting block 62 to rotate so as to finish the switching-off operation, and the switching-off mechanism.
As shown in fig. 8, the mechanical interlock lever 64 is disposed between the common power source operating mechanism and the backup power source operating mechanism baffle 15, the mechanical interlock lever 64 is mounted on the left support plate assembly 8 through a shaft eight 66 and a shaft nine 67 and can slide left and right, the torsion spring 65 makes the mechanical interlock lever 64 at the middle position at ordinary times, when one side power source operating mechanism is switched on, the mechanical interlock lever 64 is pushed to the other side to block the other side power source operating mechanism from switching on, thereby ensuring that the common power source operating mechanism and the backup power source operating mechanism cannot be simultaneously switched on.
The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a dual power change-over switch mechanism, includes closing excitation mechanism one (2), closing excitation mechanism two (12), left support board subassembly (8), right support board subassembly (9), power operating mechanism commonly used, stand-by power operating mechanism, static contact subassembly (11) are installed on base (10), its characterized in that: the switching-off spring (1) of the common power supply working mechanism and the switching-on exciting mechanism (2) of the common power supply working mechanism are respectively arranged on two sides of the square shaft (33) of the common power supply working mechanism, one end of the switching-off spring (1) of the common power supply working mechanism is fixed on the mounting base (10), the other end of the switching-off spring (1) of the common power supply working mechanism is connected with the driving crank arm (7), one end of the switching-on exciting mechanism (2) of the common power supply working mechanism is mounted on the base (10), the other end of the switching-on exciting mechanism (2) of the common power supply working mechanism is connected with the driving crank arm (7), the mechanical interlock rod (64) is arranged between the baffle (15) of the common power supply working mechanism and the baffle (68) of the standby power supply working mechanism, and the movable contact assembly (39) is mounted on the insulating block (37);
The common power supply working mechanism is used for exciting and opening or manual opening, a closing support block (62) is arranged on a left support plate assembly (8) through a shaft twelve (61) and a support frame (57), an extending rod (63) is arranged on the closing support block (62) and can rotate around the shaft twelve (61), a torsion spring (60) is sleeved on the shaft thirteenth (59), one end of the torsion spring is supported on the shaft fourteen (58), the other end of the torsion spring presses the closing support block (62) to enable the closing support block to cling to the limiting shaft fourteen (58), and a rotating arm (56) is arranged on the support frame (57) through the shaft fifteen (54);
the brake separating spring (1) and the brake closing excitation mechanism I (2) are respectively arranged at two sides of a square shaft (33) of a common power supply working mechanism, the brake separating spring (1) and the brake closing excitation mechanism I (2) are respectively arranged at two sides of the square shaft (33) of the common power supply working mechanism, one end of the brake separating spring (1) is arranged on the base (10), the other end of the brake separating spring (1) is connected with the driving crank arm (7), one end of the brake closing excitation mechanism I (2) is arranged on the base (10), and the other end of the brake closing excitation mechanism I (2) of the common power supply working mechanism is connected with the other end of the driving crank arm (7);
a reset pressure spring (3) is sleeved on the movable iron core connecting rod (4), and a connector (6) arranged at the upper end of the movable iron core connecting rod (4) is provided with a long hole;
The common power supply working mechanism is arranged on the left support frame (8) and the right support frame (9) through a first bushing (17), a second bushing (18), a third shaft (20) and a fourth shaft (23), wherein the driving crank arm (7) is fastened on a common power supply working mechanism square shaft (33) through a pin, and the baffle plate (15) is fastened on the common power supply working mechanism square shaft (33) through a pin;
The square shaft (33) is fixedly connected with the first connecting plate (28) and the second connecting plate (32) to form a rigid framework, the first connecting rod (26) is connected with the first connecting plate (28) through the first shaft (27) and can rotate around the first shaft (27), the second connecting rod (30) is connected with the second connecting plate (32) through the second shaft (31), the movable contact module (34) is connected with the first connecting rod (26) and the second connecting rod (30) through the fifth shaft (25) and the sixth shaft (29), and the standby power supply working mechanism is symmetrical in structure and the working principle of the standby power supply working mechanism is the same;
the first side plate (35) and the second side plate (38) are fixedly connected with the cross beam (36) to form a rigid framework, and the insulating block (37) is arranged on the cross beam (36);
The moving contact assembly (39) consists of a moving arc contact (40), a first pin (41), a second pin (48), a seventh shaft (42), a bracket (43), a first bolt (44), a second bolt (45), a first compression spring (46), a second compression spring (47) and a moving contact (49), wherein the moving arc contact (40) and the moving contact (49) are sleeved on the seventh shaft (42) and can rotate around the shaft (42), the first compression spring (46) is sleeved on the first pin (41), the second compression spring (47) is sleeved on the second pin (48), and the first bolt (44) and the second bolt (45) penetrate through a through hole in the bracket (43);
The mechanical interlock rod (64) is arranged between the common power supply working mechanism baffle (15) and the standby power supply working mechanism baffle (68), the mechanical interlock rod (64) is arranged on the left support plate assembly (8) through an axle eight (66) and an axle nine (67), and the torsion spring (65) enables the mechanical interlock rod (64) to be in the middle position at ordinary times.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140312.0A CN108538663B (en) | 2018-02-11 | 2018-02-11 | Novel dual-power transfer switch mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810140312.0A CN108538663B (en) | 2018-02-11 | 2018-02-11 | Novel dual-power transfer switch mechanism |
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| CN108538663A CN108538663A (en) | 2018-09-14 |
| CN108538663B true CN108538663B (en) | 2024-05-14 |
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| CN110797220B (en) * | 2018-12-25 | 2021-09-17 | 广东亮检科技有限公司 | Dual-power switch electric appliance mechanism |
| CN114420474B (en) * | 2021-12-31 | 2024-04-05 | 深圳市泰永电气科技有限公司 | Manual operating mechanism of dual-power automatic transfer switch |
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| CN105551852A (en) * | 2016-02-03 | 2016-05-04 | 濡斯电气（上海）有限公司 | Synchronous transfer structure for automatic transfer switch (ATS) |
| CN106531489A (en) * | 2016-11-25 | 2017-03-22 | 贵州泰永长征技术股份有限公司 | Medium-voltage double-power-supply change-over switch permanent magnetic driving structure |
| CN206893490U (en) * | 2017-05-24 | 2018-01-16 | 常熟市通润开关厂有限公司 | A kind of double power supply automatic transfer switch |
| CN209029272U (en) * | 2018-02-11 | 2019-06-25 | 江门市华标检测科技有限公司 | A kind of novel duplicate-power change-over switching mechanism |
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| CN108538663A (en) | 2018-09-14 |
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